IMPORTANT NOTE: by using <javadocExecutable/> parameter, the build will be plateform dependent! A good practice is to define an environnement variable (i.e. JAVA_1.6_HOME), so you could specify it: (i.e. <javadocExecutable>${env.JAVA_1.6_HOME}/bin/javadoc</javadocExecutable>). An other ways is to define a POM property using <project><properties/></project>.

Using Alternate Javadoc Version

In the same way, the Maven Javadoc Plugin tries to auto-detect the Javadoc Tool version by calling javadoc -J-fullversion.

You could also specify the version of the Javadoc Tool executable. For example: